/// <summary>
/// 获取显示名称。
/// </summary>
/// <param name="fileName">文件名(如：win.rar;setup.exe;temp.txt)</param>
/// <returns>显示名称。</returns>
public static string GetDisplayName(string fileName)
{
Thinksea.Windows.Win32API.SHFILEINFO fileInfo = new Thinksea.Windows.Win32API.SHFILEINFO(); //初始化FileInfomation结构
//调用GetFileInfo函数，最后一个参数说明获取的是文件类型(SHGFI_TYPENAME)
System.IntPtr res = Thinksea.Windows.Win32API.User32.SHGetFileInfo(fileName, (uint)Thinksea.Windows.Win32API.FileAttributeFlags.FILE_ATTRIBUTE_NORMAL,
ref fileInfo, (uint)System.Runtime.InteropServices.Marshal.SizeOf(fileInfo), (uint)Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_DISPLAYNAME);
return(fileInfo.szTypeName);
}
/// <summary>
/// 根据文件扩展名得到系统扩展名的图标
/// </summary>
/// <param name="fileName">文件名(如：win.rar;setup.exe;temp.txt)</param>
/// <param name="largeIcon">图标的大小</param>
/// <returns></returns>
public static System.Drawing.Icon GetFileIcon(string fileName, bool largeIcon)
{
Thinksea.Windows.Win32API.SHFILEINFO _SHFILEINFO = new Thinksea.Windows.Win32API.SHFILEINFO();
Thinksea.Windows.Win32API.GetFileInfoFlags flags;
if (largeIcon)
{
flags = Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_ICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_LARGEICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_USEFILEATTRIBUTES;
}
else
{
flags = Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_ICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_SMALLICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_USEFILEATTRIBUTES;
}
System.IntPtr IconIntPtr = Thinksea.Windows.Win32API.User32.SHGetFileInfo(fileName, (uint)Thinksea.Windows.Win32API.FileAttributeFlags.FILE_ATTRIBUTE_TEMPORARY, ref _SHFILEINFO, (uint)System.Runtime.InteropServices.Marshal.SizeOf(_SHFILEINFO), (uint)flags);
if (IconIntPtr.Equals(System.IntPtr.Zero))
{
return(null);
}
return(System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon));
}
/// <summary>
/// 获取目录图标
/// </summary>
/// <param name="largeIcon">指示获取大图标还是小图标。</param>
/// <returns>图标</returns>
public static System.Drawing.Icon GetDirectoryIcon(bool largeIcon)
{
Thinksea.Windows.Win32API.SHFILEINFO _SHFILEINFO = new Thinksea.Windows.Win32API.SHFILEINFO();
Thinksea.Windows.Win32API.GetFileInfoFlags flags;
if (largeIcon)
{
flags = Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_ICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_LARGEICON;
}
else
{
flags = Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_ICON | Thinksea.Windows.Win32API.GetFileInfoFlags.SHGFI_SMALLICON;
}
System.IntPtr IconIntPtr = Thinksea.Windows.Win32API.User32.SHGetFileInfo(@"", (uint)0, ref _SHFILEINFO, (uint)System.Runtime.InteropServices.Marshal.SizeOf(_SHFILEINFO), (uint)flags);
if (IconIntPtr.Equals(System.IntPtr.Zero))
{
return(null);
}
System.Drawing.Icon _Icon = System.Drawing.Icon.FromHandle(_SHFILEINFO.hIcon);
return(_Icon);
}
